├── .gitignore
├── package.json
├── readme.md
├── index.js
└── yarn.lock


/.gitignore:
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1 | /.env
2 | /node_modules
3 | 


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/package.json:
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 1 | {
 2 |   "name": "micromailer",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "start": "node index.js"
 8 |   },
 9 |   "author": "",
10 |   "license": "ISC",
11 |   "dependencies": {
12 |     "body-parser": "^1.17.2",
13 |     "dotenv": "^4.0.0",
14 |     "express": "^4.15.3",
15 |     "nodemailer": "^4.0.1"
16 |   }
17 | }
18 | 


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/readme.md:
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 1 | # micromailer
 2 | 
 3 | A Node.js microservice for sending email to a whitelisted email address.
 4 | 
 5 | Works great with [now.sh](https://zeit.co/now).
 6 | 
 7 | ## Example
 8 | 
 9 | Start the service and send an email:
10 | 
11 | ```
12 | PORT=3000 node index.js
13 | curl -X POST --data "fromName=Test&subject=Hi&body=Hello&replyTo=test@example.com" http://localhost:3000/send
14 | ```
15 | 
16 | ## Installation
17 | 
18 | Clone somewhere then create an `.env` file:
19 | 
20 | ```
21 | FROM_EMAIL=you@example.com
22 | TO_EMAIL=you@example.com
23 | SMTP_HOST=email-smtp.us-east-1.amazonaws.com
24 | SMTP_PORT=465
25 | SMTP_USER=XXX
26 | SMTP_PASSWORD=XXX
27 | MAX_BODY_SIZE=10000
28 | ```
29 | 
30 | Deploy to now with:
31 | 
32 | ```
33 | now --dotenv
34 | ```
35 | 
36 | Or run locally:
37 | 
38 | ```
39 | node index.js
40 | ```
41 | 
42 | ## API
43 | 
44 | ```
45 | POST /send
46 | ```
47 | 
48 | The data payload can be JSON or URL-encoded (x-www-form-urlencoded).
49 | 
50 | * `fromName` - name of sender
51 | * `subject` - email subject
52 | * `body` - plain-text email body
53 | * `replyTo` (optional) - reply-to email
54 | 


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/index.js:
--------------------------------------------------------------------------------
 1 | const nodemailer = require('nodemailer');
 2 | const dotenv = require('dotenv');
 3 | const express = require('express');
 4 | const bodyParser = require('body-parser');
 5 | 
 6 | dotenv.config();
 7 | 
 8 | let fromEmail = process.env.FROM_EMAIL;
 9 | if (!fromEmail) {
10 |     console.log('Missing FROM_EMAIL env var');
11 |     process.exit(1);
12 | }
13 | 
14 | let toEmail = process.env.TO_EMAIL;
15 | if (!toEmail) {
16 |     console.log('Missing TO_EMAIL env var');
17 |     process.exit(1);
18 | }
19 | 
20 | const transporter = nodemailer.createTransport({
21 |     host: process.env.SMTP_HOST,
22 |     port: parseInt(process.env.SMTP_PORT, 10) || 465,
23 |     secure: true, // secure:true for port 465, secure:false for port 587
24 |     auth: {
25 |         user: process.env.SMTP_USER,
26 |         pass: process.env.SMTP_PASSWORD
27 |     }
28 | });
29 | 
30 | const app = express();
31 | app.set('port', process.env.PORT || 3000);
32 | app.use(bodyParser.json());
33 | app.use(bodyParser.urlencoded({extended: true}));
34 | 
35 | app.get('/', (req, res) => {
36 |     res.send('ready');
37 |     // res.send(
38 |     //     '<form method=post action=/send>' +
39 |     //     '<input type=text name=fromName placeholder=fromName value=Test>' +
40 |     //     '<input type=text name=subject placeholder=subject>' +
41 |     //     '<input type=text name=body placeholder=body>' +
42 |     //     '<input type=text name=replyTo placeholder=replyTo>' +
43 |     //     '<input type=submit value=Send>' +
44 |     //     '</form>'
45 |     // );
46 | });
47 | 
48 | app.post('/send', (req, res) => {
49 |     let fromName = req.body.fromName;
50 |     if (!fromName || typeof fromName !== 'string') {
51 |         res.status(400).send('Missing fromName');
52 |         return;
53 |     }
54 |     let subject = req.body.subject;
55 |     if (!subject || typeof subject !== 'string') {
56 |         res.status(400).send('Missing subject');
57 |         return;
58 |     }
59 |     let body = req.body.body;
60 |     if (!body || typeof body !== 'string') {
61 |         res.status(400).send('Missing body');
62 |         return;
63 |     }
64 |     let replyTo = req.body.replyTo;
65 |     if (replyTo && (typeof replyTo !== 'string' || !/^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/.test(replyTo))) {
66 |         res.status(400).send('Invalid replyTo');
67 |         return;
68 |     }
69 | 
70 |     fromName = fromName.substring(0, 100).replace(/[^a-zA-Z0-9\-\.\_\ ]/, '');
71 |     subject = subject.substring(0, 200);
72 |     body = body.substring(0, parseInt(process.env.MAX_BODY_SIZE, 10) || 10000);
73 | 
74 |     const mailOptions = {
75 |         from: '"' + fromName + '" <' + fromEmail + '>',
76 |         to: toEmail,
77 |         subject: subject,
78 |         text: body,
79 |     };
80 |     if (replyTo) {
81 |         mailOptions.replyTo = replyTo;
82 |     }
83 | 
84 |     transporter.sendMail(mailOptions, (err, info) => {
85 |         if (err) {
86 |             console.log(err);
87 |             res.status(500).send(err.message);
88 |             return;
89 |         }
90 |         console.log('Message %s sent: %s', info.messageId, info.response);
91 |         res.send('sent');
92 |     });
93 | });
94 | 
95 | const server = app.listen(app.get('port'), () => {
96 |   const port = server.address().port;
97 |   console.log('Server running at http://localhost:' + port);
98 | });
99 | 


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/yarn.lock:
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  1 | # THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
  2 | # yarn lockfile v1
  3 | 
  4 | 
  5 | accepts@~1.3.3:
  6 |   version "1.3.3"
  7 |   resolved "https://registry.yarnpkg.com/accepts/-/accepts-1.3.3.tgz#c3ca7434938648c3e0d9c1e328dd68b622c284ca"
  8 |   dependencies:
  9 |     mime-types "~2.1.11"
 10 |     negotiator "0.6.1"
 11 | 
 12 | array-flatten@1.1.1:
 13 |   version "1.1.1"
 14 |   resolved "https://registry.yarnpkg.com/array-flatten/-/array-flatten-1.1.1.tgz#9a5f699051b1e7073328f2a008968b64ea2955d2"
 15 | 
 16 | body-parser@^1.17.2:
 17 |   version "1.17.2"
 18 |   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.17.2.tgz#f8892abc8f9e627d42aedafbca66bf5ab99104ee"
 19 |   dependencies:
 20 |     bytes "2.4.0"
 21 |     content-type "~1.0.2"
 22 |     debug "2.6.7"
 23 |     depd "~1.1.0"
 24 |     http-errors "~1.6.1"
 25 |     iconv-lite "0.4.15"
 26 |     on-finished "~2.3.0"
 27 |     qs "6.4.0"
 28 |     raw-body "~2.2.0"
 29 |     type-is "~1.6.15"
 30 | 
 31 | bytes@2.4.0:
 32 |   version "2.4.0"
 33 |   resolved "https://registry.yarnpkg.com/bytes/-/bytes-2.4.0.tgz#7d97196f9d5baf7f6935e25985549edd2a6c2339"
 34 | 
 35 | content-disposition@0.5.2:
 36 |   version "0.5.2"
 37 |   resolved "https://registry.yarnpkg.com/content-disposition/-/content-disposition-0.5.2.tgz#0cf68bb9ddf5f2be7961c3a85178cb85dba78cb4"
 38 | 
 39 | content-type@~1.0.2:
 40 |   version "1.0.2"
 41 |   resolved "https://registry.yarnpkg.com/content-type/-/content-type-1.0.2.tgz#b7d113aee7a8dd27bd21133c4dc2529df1721eed"
 42 | 
 43 | cookie-signature@1.0.6:
 44 |   version "1.0.6"
 45 |   resolved "https://registry.yarnpkg.com/cookie-signature/-/cookie-signature-1.0.6.tgz#e303a882b342cc3ee8ca513a79999734dab3ae2c"
 46 | 
 47 | cookie@0.3.1:
 48 |   version "0.3.1"
 49 |   resolved "https://registry.yarnpkg.com/cookie/-/cookie-0.3.1.tgz#e7e0a1f9ef43b4c8ba925c5c5a96e806d16873bb"
 50 | 
 51 | debug@2.6.7:
 52 |   version "2.6.7"
 53 |   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.7.tgz#92bad1f6d05bbb6bba22cca88bcd0ec894c2861e"
 54 |   dependencies:
 55 |     ms "2.0.0"
 56 | 
 57 | depd@1.1.0, depd@~1.1.0:
 58 |   version "1.1.0"
 59 |   resolved "https://registry.yarnpkg.com/depd/-/depd-1.1.0.tgz#e1bd82c6aab6ced965b97b88b17ed3e528ca18c3"
 60 | 
 61 | destroy@~1.0.4:
 62 |   version "1.0.4"
 63 |   resolved "https://registry.yarnpkg.com/destroy/-/destroy-1.0.4.tgz#978857442c44749e4206613e37946205826abd80"
 64 | 
 65 | dotenv@^4.0.0:
 66 |   version "4.0.0"
 67 |   resolved "https://registry.yarnpkg.com/dotenv/-/dotenv-4.0.0.tgz#864ef1379aced55ce6f95debecdce179f7a0cd1d"
 68 | 
 69 | ee-first@1.1.1:
 70 |   version "1.1.1"
 71 |   resolved "https://registry.yarnpkg.com/ee-first/-/ee-first-1.1.1.tgz#590c61156b0ae2f4f0255732a158b266bc56b21d"
 72 | 
 73 | encodeurl@~1.0.1:
 74 |   version "1.0.1"
 75 |   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.1.tgz#79e3d58655346909fe6f0f45a5de68103b294d20"
 76 | 
 77 | escape-html@~1.0.3:
 78 |   version "1.0.3"
 79 |   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
 80 | 
 81 | etag@~1.8.0:
 82 |   version "1.8.0"
 83 |   resolved "https://registry.yarnpkg.com/etag/-/etag-1.8.0.tgz#6f631aef336d6c46362b51764044ce216be3c051"
 84 | 
 85 | express@^4.15.3:
 86 |   version "4.15.3"
 87 |   resolved "https://registry.yarnpkg.com/express/-/express-4.15.3.tgz#bab65d0f03aa80c358408972fc700f916944b662"
 88 |   dependencies:
 89 |     accepts "~1.3.3"
 90 |     array-flatten "1.1.1"
 91 |     content-disposition "0.5.2"
 92 |     content-type "~1.0.2"
 93 |     cookie "0.3.1"
 94 |     cookie-signature "1.0.6"
 95 |     debug "2.6.7"
 96 |     depd "~1.1.0"
 97 |     encodeurl "~1.0.1"
 98 |     escape-html "~1.0.3"
 99 |     etag "~1.8.0"
100 |     finalhandler "~1.0.3"
101 |     fresh "0.5.0"
102 |     merge-descriptors "1.0.1"
103 |     methods "~1.1.2"
104 |     on-finished "~2.3.0"
105 |     parseurl "~1.3.1"
106 |     path-to-regexp "0.1.7"
107 |     proxy-addr "~1.1.4"
108 |     qs "6.4.0"
109 |     range-parser "~1.2.0"
110 |     send "0.15.3"
111 |     serve-static "1.12.3"
112 |     setprototypeof "1.0.3"
113 |     statuses "~1.3.1"
114 |     type-is "~1.6.15"
115 |     utils-merge "1.0.0"
116 |     vary "~1.1.1"
117 | 
118 | finalhandler@~1.0.3:
119 |   version "1.0.3"
120 |   resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.0.3.tgz#ef47e77950e999780e86022a560e3217e0d0cc89"
121 |   dependencies:
122 |     debug "2.6.7"
123 |     encodeurl "~1.0.1"
124 |     escape-html "~1.0.3"
125 |     on-finished "~2.3.0"
126 |     parseurl "~1.3.1"
127 |     statuses "~1.3.1"
128 |     unpipe "~1.0.0"
129 | 
130 | forwarded@~0.1.0:
131 |   version "0.1.0"
132 |   resolved "https://registry.yarnpkg.com/forwarded/-/forwarded-0.1.0.tgz#19ef9874c4ae1c297bcf078fde63a09b66a84363"
133 | 
134 | fresh@0.5.0:
135 |   version "0.5.0"
136 |   resolved "https://registry.yarnpkg.com/fresh/-/fresh-0.5.0.tgz#f474ca5e6a9246d6fd8e0953cfa9b9c805afa78e"
137 | 
138 | http-errors@~1.6.1:
139 |   version "1.6.1"
140 |   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.6.1.tgz#5f8b8ed98aca545656bf572997387f904a722257"
141 |   dependencies:
142 |     depd "1.1.0"
143 |     inherits "2.0.3"
144 |     setprototypeof "1.0.3"
145 |     statuses ">= 1.3.1 < 2"
146 | 
147 | iconv-lite@0.4.15:
148 |   version "0.4.15"
149 |   resolved "https://registry.yarnpkg.com/iconv-lite/-/iconv-lite-0.4.15.tgz#fe265a218ac6a57cfe854927e9d04c19825eddeb"
150 | 
151 | inherits@2.0.3:
152 |   version "2.0.3"
153 |   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.3.tgz#633c2c83e3da42a502f52466022480f4208261de"
154 | 
155 | ipaddr.js@1.3.0:
156 |   version "1.3.0"
157 |   resolved "https://registry.yarnpkg.com/ipaddr.js/-/ipaddr.js-1.3.0.tgz#1e03a52fdad83a8bbb2b25cbf4998b4cffcd3dec"
158 | 
159 | media-typer@0.3.0:
160 |   version "0.3.0"
161 |   resolved "https://registry.yarnpkg.com/media-typer/-/media-typer-0.3.0.tgz#8710d7af0aa626f8fffa1ce00168545263255748"
162 | 
163 | merge-descriptors@1.0.1:
164 |   version "1.0.1"
165 |   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
166 | 
167 | methods@~1.1.2:
168 |   version "1.1.2"
169 |   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
170 | 
171 | mime-db@~1.27.0:
172 |   version "1.27.0"
173 |   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.27.0.tgz#820f572296bbd20ec25ed55e5b5de869e5436eb1"
174 | 
175 | mime-types@~2.1.11, mime-types@~2.1.15:
176 |   version "2.1.15"
177 |   resolved "https://registry.yarnpkg.com/mime-types/-/mime-types-2.1.15.tgz#a4ebf5064094569237b8cf70046776d09fc92aed"
178 |   dependencies:
179 |     mime-db "~1.27.0"
180 | 
181 | mime@1.3.4:
182 |   version "1.3.4"
183 |   resolved "https://registry.yarnpkg.com/mime/-/mime-1.3.4.tgz#115f9e3b6b3daf2959983cb38f149a2d40eb5d53"
184 | 
185 | ms@2.0.0:
186 |   version "2.0.0"
187 |   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
188 | 
189 | negotiator@0.6.1:
190 |   version "0.6.1"
191 |   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.1.tgz#2b327184e8992101177b28563fb5e7102acd0ca9"
192 | 
193 | nodemailer@^4.0.1:
194 |   version "4.0.1"
195 |   resolved "https://registry.yarnpkg.com/nodemailer/-/nodemailer-4.0.1.tgz#b95864b07facee8287e8232effd6f1d56ec75ab2"
196 | 
197 | on-finished@~2.3.0:
198 |   version "2.3.0"
199 |   resolved "https://registry.yarnpkg.com/on-finished/-/on-finished-2.3.0.tgz#20f1336481b083cd75337992a16971aa2d906947"
200 |   dependencies:
201 |     ee-first "1.1.1"
202 | 
203 | parseurl@~1.3.1:
204 |   version "1.3.1"
205 |   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.1.tgz#c8ab8c9223ba34888aa64a297b28853bec18da56"
206 | 
207 | path-to-regexp@0.1.7:
208 |   version "0.1.7"
209 |   resolved "https://registry.yarnpkg.com/path-to-regexp/-/path-to-regexp-0.1.7.tgz#df604178005f522f15eb4490e7247a1bfaa67f8c"
210 | 
211 | proxy-addr@~1.1.4:
212 |   version "1.1.4"
213 |   resolved "https://registry.yarnpkg.com/proxy-addr/-/proxy-addr-1.1.4.tgz#27e545f6960a44a627d9b44467e35c1b6b4ce2f3"
214 |   dependencies:
215 |     forwarded "~0.1.0"
216 |     ipaddr.js "1.3.0"
217 | 
218 | qs@6.4.0:
219 |   version "6.4.0"
220 |   resolved "https://registry.yarnpkg.com/qs/-/qs-6.4.0.tgz#13e26d28ad6b0ffaa91312cd3bf708ed351e7233"
221 | 
222 | range-parser@~1.2.0:
223 |   version "1.2.0"
224 |   resolved "https://registry.yarnpkg.com/range-parser/-/range-parser-1.2.0.tgz#f49be6b487894ddc40dcc94a322f611092e00d5e"
225 | 
226 | raw-body@~2.2.0:
227 |   version "2.2.0"
228 |   resolved "https://registry.yarnpkg.com/raw-body/-/raw-body-2.2.0.tgz#994976cf6a5096a41162840492f0bdc5d6e7fb96"
229 |   dependencies:
230 |     bytes "2.4.0"
231 |     iconv-lite "0.4.15"
232 |     unpipe "1.0.0"
233 | 
234 | send@0.15.3:
235 |   version "0.15.3"
236 |   resolved "https://registry.yarnpkg.com/send/-/send-0.15.3.tgz#5013f9f99023df50d1bd9892c19e3defd1d53309"
237 |   dependencies:
238 |     debug "2.6.7"
239 |     depd "~1.1.0"
240 |     destroy "~1.0.4"
241 |     encodeurl "~1.0.1"
242 |     escape-html "~1.0.3"
243 |     etag "~1.8.0"
244 |     fresh "0.5.0"
245 |     http-errors "~1.6.1"
246 |     mime "1.3.4"
247 |     ms "2.0.0"
248 |     on-finished "~2.3.0"
249 |     range-parser "~1.2.0"
250 |     statuses "~1.3.1"
251 | 
252 | serve-static@1.12.3:
253 |   version "1.12.3"
254 |   resolved "https://registry.yarnpkg.com/serve-static/-/serve-static-1.12.3.tgz#9f4ba19e2f3030c547f8af99107838ec38d5b1e2"
255 |   dependencies:
256 |     encodeurl "~1.0.1"
257 |     escape-html "~1.0.3"
258 |     parseurl "~1.3.1"
259 |     send "0.15.3"
260 | 
261 | setprototypeof@1.0.3:
262 |   version "1.0.3"
263 |   resolved "https://registry.yarnpkg.com/setprototypeof/-/setprototypeof-1.0.3.tgz#66567e37043eeb4f04d91bd658c0cbefb55b8e04"
264 | 
265 | "statuses@>= 1.3.1 < 2", statuses@~1.3.1:
266 |   version "1.3.1"
267 |   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.3.1.tgz#faf51b9eb74aaef3b3acf4ad5f61abf24cb7b93e"
268 | 
269 | type-is@~1.6.15:
270 |   version "1.6.15"
271 |   resolved "https://registry.yarnpkg.com/type-is/-/type-is-1.6.15.tgz#cab10fb4909e441c82842eafe1ad646c81804410"
272 |   dependencies:
273 |     media-typer "0.3.0"
274 |     mime-types "~2.1.15"
275 | 
276 | unpipe@1.0.0, unpipe@~1.0.0:
277 |   version "1.0.0"
278 |   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
279 | 
280 | utils-merge@1.0.0:
281 |   version "1.0.0"
282 |   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.0.tgz#0294fb922bb9375153541c4f7096231f287c8af8"
283 | 
284 | vary@~1.1.1:
285 |   version "1.1.1"
286 |   resolved "https://registry.yarnpkg.com/vary/-/vary-1.1.1.tgz#67535ebb694c1d52257457984665323f587e8d37"
287 | 


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